[1] Univ Bath, Pharm Pharmacol, Bath, England
[2] Royal Natl Hosp Rheumat Dis, Bath, Avon, England
[3] Univ Liverpool, Dept Musculoskeletal Biol II, Liverpool, England
[4] Aintree Univ Hosp NHS Fdn Trust, Aintree Chest Ctr, Liverpool, Merseyside, England